Home / 91,329.28-136,992.24-28,999.84

Finding the Fourth Proportional to 91,329.28, 136,992.24 and 28,999.84

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Solution

The fourth proportional to 91,329.28, 136,992.24 and 28,999.84 is: 43,499.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,329.28 : 136,992.24 = 28,999.84 : x
  2. Step 2: Convert to fraction form
    91,329.28/136,992.24 = 28,999.84/x
  3. Step 3: Cross multiply
    91,329.28x = 136,992.24 × 28,999.84
  4. Step 4: Simplify right side
    91,329.28x = 3,972,753,041.24
  5. Step 5: Solve for x
    x = 3,972,753,041.24/91,329.28
  6. Step 6: Final answer
    x = 43,499.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.